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Android smartphones are now capable of warning users just seconds before an earthquake strikes. This technology uses advanced sensors and real-time systems to detect early tremors and alert people in danger zones.
Throughout history, earthquakes have caused massive destruction. They have killed thousands and pushed many countries into deep economic crises.
The impact doesn’t stop at collapsing buildings – critical infrastructure like communication networks, power lines, and transportation systems often suffer serious damage.
Modern technology has given Android phones a powerful new role. Besides being communication tools, they now work as earthquake detection devices.
These phones are equipped with accelerometers, sensors that detect ground motion before humans can even feel it.
Read More: Karachi records 57 low-magnitude earthquakes in June 2025
How the earthquake alert system works
When an earthquake begins, it sends out initial tremors called pre-shake waves. These waves are detected by nearby seismic stations or by your phone’s built-in sensors.
The data is then sent instantly to Google’s system, which processes it and sends alerts to other Android phones in the area, often within seconds.
Proven global impact
From 2021 to 2024, this Android-based earthquake alert system successfully detected over 11,000 real earthquakes worldwide. It issued timely warnings that gave people a chance to act before major tremors hit.
Alerts are usually sent 15 to 60 seconds before the shaking begins. That short window is enough to move away from windows, take shelter under sturdy furniture, or avoid stairs — small actions that can save lives.
To activate earthquake alerts on your Android phone:
- Open Settings
- Tap Safety & Emergency
- Select Earthquake Alerts
- Turn the feature on
- Tap Test Alert to hear the sound
iPhones also contain accelerometers, but Apple currently doesn’t use them for earthquake alerts. However, iPhone users can still download third-party apps to receive similar warnings.
Google’s earthquake alert system now covers over 2.5 billion people in 98 countries. The system continues to grow and improve, making smartphones a vital part of public safety.
